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A sample of 266 students...

A sample of 266 students who were taking online courses were asked to describe their overall impression of online learning on a scale of 1–7, with 7 representing the most favorable impression. The average score was 5.65, and the standard deviation was 0.95.(a) Construct a 99% confidence interval for the mean score. __< mu < ___(b) Assume that the mean score for students taking traditional courses is 5.58. A college that offers online courses claims that the mean scores for online courses and traditional courses are the same. Does the confidence interval contradict this claim? Explain.

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